1 /* 2 * Copyright (c) 1988 University of Utah. 3 * Copyright (c) 1982, 1990 The Regents of the University of California. 4 * All rights reserved. 5 * 6 * This code is derived from software contributed to Berkeley by 7 * the Systems Programming Group of the University of Utah Computer 8 * Science Department. 9 * 10 * %sccs.include.redist.c% 11 * 12 * from: Utah $Hdr: rd.c 1.30 89/09/17$ 13 * 14 * @(#)rd.c 7.1 (Berkeley) 05/08/90 15 */ 16 17 /* 18 * CS80/SS80 disk driver 19 */ 20 #include "rd.h" 21 #if NRD > 0 22 23 #include "param.h" 24 #include "systm.h" 25 #include "errno.h" 26 #include "dkstat.h" 27 #include "disklabel.h" 28 #include "buf.h" 29 #include "uio.h" 30 31 #include "device.h" 32 #include "rdreg.h" 33 34 int rdinit(), rdstart(), rdgo(), rdintr(); 35 struct driver rddriver = { 36 rdinit, "rd", rdstart, rdgo, rdintr, 37 }; 38 39 struct rd_softc { 40 struct hp_device *sc_hd; 41 struct rd_iocmd sc_ioc; 42 struct rd_rscmd sc_rsc; 43 struct rd_stat sc_stat; 44 struct rd_ssmcmd sc_ssmc; 45 struct rd_srcmd sc_src; 46 struct rd_clearcmd sc_clear; 47 int sc_resid; 48 char *sc_addr; 49 struct rdinfo *sc_info; 50 int sc_flags; 51 short sc_type; 52 short sc_punit; 53 struct devqueue sc_dq; 54 } rd_softc[NRD]; 55 56 /* sc_flags values */ 57 #define RDF_ALIVE 0x1 58 #define RDF_SEEK 0x2 59 #define RDF_SWAIT 0x4 60 61 struct size { 62 daddr_t nblocks; 63 int cyloff; 64 }; 65 66 #ifdef DEBUG 67 int rddebug = 0x80; 68 #define RDB_FOLLOW 0x01 69 #define RDB_STATUS 0x02 70 #define RDB_IDENT 0x04 71 #define RDB_IO 0x08 72 #define RDB_ASYNC 0x10 73 #define RDB_ERROR 0x80 74 #define RDB_DUMP 0x80000000 75 76 struct rdstats { 77 long rdretries; 78 long rdresets; 79 long rdtimeouts; 80 long rdpolltries; 81 long rdpollwaits; 82 } rdstats[NRD]; 83 84 /* error message tables */ 85 char *err_reject[] = { 86 0, 0, 87 "channel parity error", /* 0x2000 */ 88 0, 0, 89 "illegal opcode", /* 0x0400 */ 90 "module addressing", /* 0x0200 */ 91 "address bounds", /* 0x0100 */ 92 "parameter bounds", /* 0x0080 */ 93 "illegal parameter", /* 0x0040 */ 94 "message sequence", /* 0x0020 */ 95 0, 96 "message length", /* 0x0008 */ 97 0, 0, 0 98 }; 99 100 char *err_fault[] = { 101 0, 102 "cross unit", /* 0x4000 */ 103 0, 104 "controller fault", /* 0x1000 */ 105 0, 0, 106 "unit fault", /* 0x0200 */ 107 0, 108 "diagnostic result", /* 0x0080 */ 109 0, 110 "operator release request", /* 0x0020 */ 111 "diagnostic release request", /* 0x0010 */ 112 "internal maintenance release request", /* 0x0008 */ 113 0, 114 "power fail", /* 0x0002 */ 115 "retransmit" /* 0x0001 */ 116 }; 117 118 char *err_access[] = { 119 "illegal parallel operation", /* 0x8000 */ 120 "uninitialized media", /* 0x4000 */ 121 "no spares available", /* 0x2000 */ 122 "not ready", /* 0x1000 */ 123 "write protect", /* 0x0800 */ 124 "no data found", /* 0x0400 */ 125 0, 0, 126 "unrecoverable data overflow", /* 0x0080 */ 127 "unrecoverable data", /* 0x0040 */ 128 0, 129 "end of file", /* 0x0010 */ 130 "end of volume", /* 0x0008 */ 131 0, 0, 0 132 }; 133 134 char *err_info[] = { 135 "operator release request", /* 0x8000 */ 136 "diagnostic release request", /* 0x4000 */ 137 "internal maintenance release request", /* 0x2000 */ 138 "media wear", /* 0x1000 */ 139 "latency induced", /* 0x0800 */ 140 0, 0, 141 "auto sparing invoked", /* 0x0100 */ 142 0, 143 "recoverable data overflow", /* 0x0040 */ 144 "marginal data", /* 0x0020 */ 145 "recoverable data", /* 0x0010 */ 146 0, 147 "maintenance track overflow", /* 0x0004 */ 148 0, 0 149 }; 150 #endif 151 152 /* 153 * CS/80 partitions. We reserve the first cylinder for a LIF 154 * style boot directory (the 8k allowed in the BSD filesystem 155 * is just way too small). This boot area is outside of all but 156 * the C partition. This implies that you cannot use the C 157 * partition on a bootable disk since the filesystem would overlay 158 * the boot area. You must use the A partition. 159 * 160 * These maps support four basic layouts: 161 * 162 * A/B/G: This is the "traditional" setup for a bootable disk. 163 * A is the root partition, B the swap, and G a user partition. 164 * A/D/H: This is a setup for bootable systems requiring more swap 165 * (e.g. those who use HPCL). It has A as the root, D as a 166 * larger swap, and H as a smaller user partition. 167 * A/D/E/F: Similar to A/D/H with E and F breaking H into two partitions. 168 * E could be used for /usr and F for users. 169 * C: This gives a single, non-bootable, large user filesystem. 170 * Good for second drives on a machine (e.g. /usr/src). 171 */ 172 struct size rd7945A_sizes[8] = { 173 RDSZ(15904), 1, /* A=cyl 1 thru 142 */ 174 RDSZ(20160), 143, /* B=cyl 143 thru 322 */ 175 RDSZ(108416), 0, /* C=cyl 0 thru 967 */ 176 RDSZ(40320), 143, /* D=cyl 143 thru 502 */ 177 RDSZ(0), 0, /* E=<undefined> */ 178 RDSZ(0), 0, /* F=<undefined> */ 179 RDSZ(72240), 323, /* G=cyl 323 thru 967 */ 180 RDSZ(52080), 503, /* H=cyl 503 thru 967 */ 181 }, rd9134D_sizes[8] = { 182 RDSZ(15936), 1, /* A=cyl 1 thru 166 */ 183 RDSZ(13056), 167, /* B=cyl 167 thru 302 */ 184 RDSZ(29088), 0, /* C=cyl 0 thru 302 */ 185 RDSZ(0), 0, /* D=<undefined> */ 186 RDSZ(0), 0, /* E=<undefined> */ 187 RDSZ(0), 0, /* F=<undefined> */ 188 RDSZ(0), 0, /* G=<undefined> */ 189 RDSZ(0), 0, /* H=<undefined> */ 190 }, rd9122S_sizes[8] = { 191 RDSZ(0), 0, /* A=<undefined> */ 192 RDSZ(0), 0, /* B=<undefined> */ 193 RDSZ(1232), 0, /* C=cyl 0 thru 76 */ 194 RDSZ(0), 0, /* D=<undefined> */ 195 RDSZ(0), 0, /* E=<undefined> */ 196 RDSZ(0), 0, /* F=<undefined> */ 197 RDSZ(0), 0, /* G=<undefined> */ 198 RDSZ(0), 0, /* H=<undefined> */ 199 }, rd7912P_sizes[8] = { 200 RDSZ(15904), 0, /* A=cyl 1 thru 71 */ 201 RDSZ(22400), 72, /* B=cyl 72 thru 171 */ 202 RDSZ(128128), 0, /* C=cyl 0 thru 571 */ 203 RDSZ(42560), 72, /* D=cyl 72 thru 261 */ 204 RDSZ(0), 292, /* E=<undefined> */ 205 RDSZ(0), 542, /* F=<undefined> */ 206 RDSZ(89600), 172, /* G=cyl 221 thru 571 */ 207 RDSZ(69440), 262, /* H=cyl 262 thru 571 */ 208 }, rd7914P_sizes[8] = { 209 RDSZ(15904), 1, /* A=cyl 1 thru 71 */ 210 RDSZ(40320), 72, /* B=cyl 72 thru 251 */ 211 RDSZ(258048), 0, /* C=cyl 0 thru 1151 */ 212 RDSZ(64960), 72, /* D=cyl 72 thru 361 */ 213 RDSZ(98560), 362, /* E=cyl 362 thru 801 */ 214 RDSZ(78400), 802, /* F=cyl 802 thru 1151 */ 215 RDSZ(201600), 252, /* G=cyl 221 thru 1151 */ 216 RDSZ(176960), 362, /* H=cyl 362 thru 1151 */ 217 }, rd7933H_sizes[8] = { 218 RDSZ(16146), 1, /* A=cyl 1 thru 27 */ 219 RDSZ(66976), 28, /* B=cyl 28 thru 139 */ 220 RDSZ(789958), 0, /* C=cyl 0 thru 1320 */ 221 RDSZ(16146), 140, /* D=cyl 140 thru 166 */ 222 RDSZ(165646), 167, /* E=cyl 167 thru 443 */ 223 RDSZ(165646), 444, /* F=cyl 444 thru 720 */ 224 RDSZ(706238), 140, /* G=cyl 140 thru 1320 */ 225 RDSZ(358800), 721, /* H=cyl 721 thru 1320 */ 226 }, rd9134L_sizes[8] = { 227 RDSZ(15920), 1, /* A=cyl 1 thru 199 */ 228 RDSZ(20000), 200, /* B=cyl 200 thru 449 */ 229 RDSZ(77840), 0, /* C=cyl 0 thru 972 */ 230 RDSZ(32000), 200, /* D=cyl 200 thru 599 */ 231 RDSZ(0), 0, /* E=<undefined> */ 232 RDSZ(0), 0, /* F=<undefined> */ 233 RDSZ(41840), 450, /* G=cyl 450 thru 972 */ 234 RDSZ(29840), 600, /* H=cyl 600 thru 972 */ 235 }, rd7957A_sizes[8] = { 236 RDSZ(16016), 1, /* A=cyl 1 thru 104 */ 237 RDSZ(24640), 105, /* B=cyl 105 thru 264 */ 238 RDSZ(159544), 0, /* C=cyl 0 thru 1035 */ 239 RDSZ(42350), 105, /* D=cyl 105 thru 379 */ 240 RDSZ(54824), 380, /* E=cyl 380 thru 735 */ 241 RDSZ(46200), 736, /* F=cyl 736 thru 1035 */ 242 RDSZ(118734), 265, /* G=cyl 265 thru 1035 */ 243 RDSZ(101024), 380, /* H=cyl 380 thru 1035 */ 244 }, rd7958A_sizes[8] = { 245 RDSZ(16128), 1, /* A=cyl 1 thru 64 */ 246 RDSZ(32256), 65, /* B=cyl 65 thru 192 */ 247 RDSZ(255276), 0, /* C=cyl 0 thru 1012 */ 248 RDSZ(48384), 65, /* D=cyl 65 thru 256 */ 249 RDSZ(100800), 257, /* E=cyl 257 thru 656 */ 250 RDSZ(89712), 657, /* F=cyl 657 thru 1012 */ 251 RDSZ(206640), 193, /* G=cyl 193 thru 1012 */ 252 RDSZ(190512), 257, /* H=cyl 257 thru 1012 */ 253 }, rd7957B_sizes[8] = { 254 RDSZ(16002), 1, /* A=cyl 1 thru 127 */ 255 RDSZ(32760), 128, /* B=cyl 128 thru 387 */ 256 RDSZ(159894), 0, /* C=cyl 0 thru 1268 */ 257 RDSZ(49140), 128, /* D=cyl 128 thru 517 */ 258 RDSZ(50400), 518, /* E=cyl 518 thru 917 */ 259 RDSZ(44226), 918, /* F=cyl 918 thru 1268 */ 260 RDSZ(111006), 388, /* G=cyl 388 thru 1268 */ 261 RDSZ(94626), 518, /* H=cyl 518 thru 1268 */ 262 }, rd7958B_sizes[8] = { 263 RDSZ(16254), 1, /* A=cyl 1 thru 43 */ 264 RDSZ(32886), 44, /* B=cyl 44 thru 130 */ 265 RDSZ(297108), 0, /* C=cyl 0 thru 785 */ 266 RDSZ(49140), 44, /* D=cyl 44 thru 173 */ 267 RDSZ(121716), 174, /* E=cyl 174 thru 495 */ 268 RDSZ(109620), 496, /* F=cyl 496 thru 785 */ 269 RDSZ(247590), 131, /* G=cyl 131 thru 785 */ 270 RDSZ(231336), 174, /* H=cyl 174 thru 785 */ 271 }, rd7959B_sizes[8] = { 272 RDSZ(16254), 1, /* A=cyl 1 thru 43 */ 273 RDSZ(49140), 44, /* B=cyl 44 thru 173 */ 274 RDSZ(594216), 0, /* C=cyl 0 thru 1571 */ 275 RDSZ(65772), 44, /* D=cyl 44 thru 217 */ 276 RDSZ(303912), 218, /* E=cyl 218 thru 1021 */ 277 RDSZ(207900), 1022, /* F=cyl 1022 thru 1571 */ 278 RDSZ(528444), 174, /* G=cyl 174 thru 1571 */ 279 RDSZ(511812), 218, /* H=cyl 218 thru 1571 */ 280 281 #if DEV_BSIZE == 512 282 /* 283 * These values would not work for 1k, 284 * since the number of cylinders would be different. 285 */ 286 }, rd7936H_sizes[8] = { 287 RDSZ(16359), 1, /* A=cyl 1 thru 19 */ 288 RDSZ(67158), 20, /* B=cyl 20 thru 97 */ 289 RDSZ(600978), 0, /* C=cyl 0 thru 697 */ 290 RDSZ(16359), 98, /* D=cyl 98 thru 116 */ 291 RDSZ(120540), 117, /* E=cyl 117 thru 256 */ 292 RDSZ(120540), 256, /* F=cyl 256 thru 396 */ 293 RDSZ(516600), 98, /* G=cyl 98 thru 697 */ 294 RDSZ(259161), 397, /* H=cyl 397 thru 697 */ 295 }, rd7937H_sizes[8] = { 296 #ifdef UTAH 297 RDSZ(15990), 1, /* A=cyl 1 thru 10 */ 298 RDSZ(67158), 11, /* B=cyl 11 thru 52 */ 299 RDSZ(1116102), 0, /* C=cyl 0 thru 697 */ 300 RDSZ(124722), 53, /* D=cyl 53 thru 130 */ 301 RDSZ(163098), 131, /* E=cyl 131 thru 232 */ 302 RDSZ(287820), 233, /* F=cyl 233 thru 412 */ 303 RDSZ(1031355), 53, /* G=cyl 53 thru 697 */ 304 RDSZ(455715), 413, /* H=cyl 413 thru 697 */ 305 #else 306 RDSZ(15990), 1, /* A=cyl 1 thru 10 */ 307 RDSZ(67158), 11, /* B=cyl 11 thru 52 */ 308 RDSZ(1116102), 0, /* C=cyl 0 thru 697 */ 309 RDSZ(15990), 53, /* D=cyl 53 thru 62 */ 310 RDSZ(246246), 63, /* E=cyl 63 thru 216 */ 311 RDSZ(246246), 217, /* F=cyl 217 thru 370 */ 312 RDSZ(1031355), 53, /* G=cyl 53 thru 697 */ 313 RDSZ(522873), 371, /* H=cyl 371 thru 697 */ 314 #endif 315 #endif 316 }; 317 318 struct rdinfo { 319 int nbpt; /* DEV_BSIZE blocks per track */ 320 int ntpc; /* tracks per cylinder */ 321 int nbpc; /* blocks per cylinder */ 322 struct size *sizes; /* default partition info (if no disklabel) */ 323 short hwid; /* 2 byte HW id */ 324 short maxunum; /* maximum allowed unit number */ 325 char *desc; /* drive type description */ 326 }; 327 328 struct rdinfo rdinfo[] = { 329 NRD7945ABPT, NRD7945ATRK, NRD7945ABPT * NRD7945ATRK, 330 rd7945A_sizes, RD7946AID, 0, "7945A", 331 NRD9134DBPT, NRD9134DTRK, NRD9134DBPT * NRD9134DTRK, 332 rd9134D_sizes, RD9134DID, 1, "9134D", 333 NRD9122SBPT, NRD9122STRK, NRD9122SBPT * NRD9122STRK, 334 rd9122S_sizes, RD9134LID, 1, "9122S", 335 NRD7912PBPT, NRD7912PTRK, NRD7912PBPT * NRD7912PTRK, 336 rd7912P_sizes, RD7912PID, 0, "7912P", 337 NRD7914PBPT, NRD7914PTRK, NRD7914PBPT * NRD7914PTRK, 338 rd7914P_sizes, RD7914PID, 0, "7914P", 339 NRD7958ABPT, NRD7958ATRK, NRD7958ABPT * NRD7958ATRK, 340 rd7958A_sizes, RD7958AID, 0, "7958A", 341 NRD7957ABPT, NRD7957ATRK, NRD7957ABPT * NRD7957ATRK, 342 rd7957A_sizes, RD7957AID, 0, "7957A", 343 NRD7933HBPT, NRD7933HTRK, NRD7933HBPT * NRD7933HTRK, 344 rd7933H_sizes, RD7933HID, 0, "7933H", 345 NRD9134LBPT, NRD9134LTRK, NRD9134LBPT * NRD9134LTRK, 346 rd9134L_sizes, RD9134LID, 1, "9134L", 347 NRD7936HBPT, NRD7936HTRK, NRD7936HBPT * NRD7936HTRK, 348 rd7936H_sizes, RD7936HID, 0, "7936H", 349 NRD7937HBPT, NRD7937HTRK, NRD7937HBPT * NRD7937HTRK, 350 rd7937H_sizes, RD7937HID, 0, "7937H", 351 NRD7914PBPT, NRD7914PTRK, NRD7914PBPT * NRD7914PTRK, 352 rd7914P_sizes, RD7914CTID, 0, "7914CT", 353 NRD7945ABPT, NRD7945ATRK, NRD7945ABPT * NRD7945ATRK, 354 rd7945A_sizes, RD7946AID, 0, "7946A", 355 NRD9122SBPT, NRD9122STRK, NRD9122SBPT * NRD9122STRK, 356 rd9122S_sizes, RD9134LID, 1, "9122D", 357 NRD7957BBPT, NRD7957BTRK, NRD7957BBPT * NRD7957BTRK, 358 rd7957B_sizes, RD7957BID, 0, "7957B", 359 NRD7958BBPT, NRD7958BTRK, NRD7958BBPT * NRD7958BTRK, 360 rd7958B_sizes, RD7958BID, 0, "7958B", 361 NRD7959BBPT, NRD7959BTRK, NRD7959BBPT * NRD7959BTRK, 362 rd7959B_sizes, RD7959BID, 0, "7959B", 363 }; 364 int nrdinfo = sizeof(rdinfo) / sizeof(rdinfo[0]); 365 366 struct buf rdtab[NRD]; 367 struct buf rdbuf[NRD]; 368 369 #define rdunit(x) ((minor(x) >> 3) & 0xf) 370 #define rdpart(x) (minor(x) & 0x7) 371 #define rdpunit(x) ((x) & 7) 372 #define b_cylin b_resid 373 #define RDRETRY 5 374 #define RDWAITC 1 /* min time for timeout in seconds */ 375 376 rdinit(hd) 377 register struct hp_device *hd; 378 { 379 register struct rd_softc *rs = &rd_softc[hd->hp_unit]; 380 381 rs->sc_hd = hd; 382 rs->sc_punit = rdpunit(hd->hp_flags); 383 rs->sc_type = rdident(rs, hd); 384 if (rs->sc_type < 0) 385 return(0); 386 rs->sc_dq.dq_ctlr = hd->hp_ctlr; 387 rs->sc_dq.dq_unit = hd->hp_unit; 388 rs->sc_dq.dq_slave = hd->hp_slave; 389 rs->sc_dq.dq_driver = &rddriver; 390 rs->sc_info = &rdinfo[rs->sc_type]; 391 rs->sc_flags = RDF_ALIVE; 392 return(1); 393 } 394 395 rdident(rs, hd) 396 struct rd_softc *rs; 397 struct hp_device *hd; 398 { 399 struct rd_describe desc; 400 u_char stat, cmd[3]; 401 int unit, lunit; 402 char name[7]; 403 register int ctlr, slave, id, i; 404 405 ctlr = hd->hp_ctlr; 406 slave = hd->hp_slave; 407 unit = rs->sc_punit; 408 lunit = hd->hp_unit; 409 410 /* 411 * Grab device id and make sure: 412 * 1. It is a CS80 device. 413 * 2. It is one of the types we support. 414 * 3. If it is a 7946, we are accessing the disk unit (0) 415 */ 416 id = hpibid(ctlr, slave); 417 if ((id & 0x200) == 0) 418 return(-1); 419 for (i = 0; i < nrdinfo; i++) 420 if (id == rdinfo[i].hwid) 421 break; 422 if (i == nrdinfo || unit > rdinfo[i].maxunum) 423 return(-1); 424 id = i; 425 426 /* 427 * Reset drive and collect device description. 428 * Don't really use the description info right now but 429 * might come in handy in the future (for disk labels). 430 */ 431 rdreset(rs, hd); 432 cmd[0] = C_SUNIT(unit); 433 cmd[1] = C_SVOL(0); 434 cmd[2] = C_DESC; 435 hpibsend(ctlr, slave, C_CMD, cmd, sizeof(cmd)); 436 hpibrecv(ctlr, slave, C_EXEC, &desc, 37); 437 hpibrecv(ctlr, slave, C_QSTAT, &stat, sizeof(stat)); 438 bzero(name, sizeof(name)); 439 if (!stat) { 440 register int n = desc.d_name; 441 for (i = 5; i >= 0; i--) { 442 name[i] = (n & 0xf) + '0'; 443 n >>= 4; 444 } 445 } 446 #ifdef DEBUG 447 if (rddebug & RDB_IDENT) { 448 printf("rd%d: name: %x ('%s')\n", 449 lunit, desc.d_name, name); 450 printf(" iuw %x, maxxfr %d, ctype %d\n", 451 desc.d_iuw, desc.d_cmaxxfr, desc.d_ctype); 452 printf(" utype %d, bps %d, blkbuf %d, burst %d, blktime %d\n", 453 desc.d_utype, desc.d_sectsize, 454 desc.d_blkbuf, desc.d_burstsize, desc.d_blocktime); 455 printf(" avxfr %d, ort %d, atp %d, maxint %d, fv %x, rv %x\n", 456 desc.d_uavexfr, desc.d_retry, desc.d_access, 457 desc.d_maxint, desc.d_fvbyte, desc.d_rvbyte); 458 printf(" maxcyl/head/sect %d/%d/%d, maxvsect %d, inter %d\n", 459 desc.d_maxcyl, desc.d_maxhead, desc.d_maxsect, 460 desc.d_maxvsectl, desc.d_interleave); 461 } 462 #endif 463 /* 464 * Take care of a couple of anomolies: 465 * 1. 7945A and 7946A both return same HW id 466 * 2. 9122S and 9134D both return same HW id 467 * 3. 9122D and 9134L both return same HW id 468 */ 469 switch (rdinfo[id].hwid) { 470 case RD7946AID: 471 if (bcmp(name, "079450", 6) == 0) 472 id = RD7945A; 473 else 474 id = RD7946A; 475 break; 476 477 case RD9134LID: 478 if (bcmp(name, "091340", 6) == 0) 479 id = RD9134L; 480 else 481 id = RD9122D; 482 break; 483 484 case RD9134DID: 485 if (bcmp(name, "091220", 6) == 0) 486 id = RD9122S; 487 else 488 id = RD9134D; 489 break; 490 } 491 printf("rd%d: %s\n", lunit, rdinfo[id].desc); 492 return(id); 493 } 494 495 rdreset(rs, hd) 496 register struct rd_softc *rs; 497 register struct hp_device *hd; 498 { 499 u_char stat; 500 501 rs->sc_clear.c_unit = C_SUNIT(rs->sc_punit); 502 rs->sc_clear.c_cmd = C_CLEAR; 503 hpibsend(hd->hp_ctlr, hd->hp_slave, C_TCMD, &rs->sc_clear, 504 sizeof(rs->sc_clear)); 505 hpibswait(hd->hp_ctlr, hd->hp_slave); 506 hpibrecv(hd->hp_ctlr, hd->hp_slave, C_QSTAT, &stat, sizeof(stat)); 507 rs->sc_src.c_unit = C_SUNIT(RDCTLR); 508 rs->sc_src.c_nop = C_NOP; 509 rs->sc_src.c_cmd = C_SREL; 510 rs->sc_src.c_param = C_REL; 511 hpibsend(hd->hp_ctlr, hd->hp_slave, C_CMD, &rs->sc_src, 512 sizeof(rs->sc_src)); 513 hpibswait(hd->hp_ctlr, hd->hp_slave); 514 hpibrecv(hd->hp_ctlr, hd->hp_slave, C_QSTAT, &stat, sizeof(stat)); 515 rs->sc_ssmc.c_unit = C_SUNIT(rs->sc_punit); 516 rs->sc_ssmc.c_cmd = C_SSM; 517 rs->sc_ssmc.c_refm = REF_MASK; 518 rs->sc_ssmc.c_fefm = FEF_MASK; 519 rs->sc_ssmc.c_aefm = AEF_MASK; 520 rs->sc_ssmc.c_iefm = IEF_MASK; 521 hpibsend(hd->hp_ctlr, hd->hp_slave, C_CMD, &rs->sc_ssmc, 522 sizeof(rs->sc_ssmc)); 523 hpibswait(hd->hp_ctlr, hd->hp_slave); 524 hpibrecv(hd->hp_ctlr, hd->hp_slave, C_QSTAT, &stat, sizeof(stat)); 525 #ifdef DEBUG 526 rdstats[hd->hp_unit].rdresets++; 527 #endif 528 } 529 530 /*ARGSUSED*/ 531 rdopen(dev, flags) 532 dev_t dev; 533 { 534 register int unit = rdunit(dev); 535 register struct rd_softc *rs = &rd_softc[unit]; 536 537 if (unit >= NRD || (rs->sc_flags & RDF_ALIVE) == 0) 538 return(ENXIO); 539 if (rs->sc_hd->hp_dk >= 0) 540 dk_wpms[rs->sc_hd->hp_dk] = 60 * rs->sc_info->nbpt * DEV_BSIZE / 2; 541 return(0); 542 } 543 544 rdstrategy(bp) 545 register struct buf *bp; 546 { 547 register int part = rdpart(bp->b_dev); 548 register int unit = rdunit(bp->b_dev); 549 register int bn, sz; 550 register struct rd_softc *rs = &rd_softc[unit]; 551 register struct buf *dp = &rdtab[unit]; 552 int s; 553 554 #ifdef DEBUG 555 if (rddebug & RDB_FOLLOW) 556 printf("rdstrategy(%x): dev %x, bn %x, bcount %x, %c\n", 557 bp, bp->b_dev, bp->b_blkno, bp->b_bcount, 558 (bp->b_flags & B_READ) ? 'R' : 'W'); 559 #endif 560 bn = bp->b_blkno; 561 sz = (bp->b_bcount + (DEV_BSIZE - 1)) >> DEV_BSHIFT; 562 if (bn < 0 || bn + sz > rs->sc_info->sizes[part].nblocks) { 563 if (bn == rs->sc_info->sizes[part].nblocks) { 564 bp->b_resid = bp->b_bcount; 565 goto done; 566 } 567 bp->b_error = EINVAL; 568 goto bad; 569 } 570 bp->b_cylin = bn / rs->sc_info->nbpc + rs->sc_info->sizes[part].cyloff; 571 s = splbio(); 572 disksort(dp, bp); 573 if (dp->b_active == 0) { 574 dp->b_active = 1; 575 rdustart(unit); 576 } 577 splx(s); 578 return; 579 bad: 580 bp->b_flags |= B_ERROR; 581 done: 582 biodone(bp); 583 } 584 585 /* 586 * Called from timeout() when handling maintenance releases 587 */ 588 rdrestart(unit) 589 int unit; 590 { 591 int s = splbio(); 592 rdustart(unit); 593 splx(s); 594 } 595 596 rdustart(unit) 597 register int unit; 598 { 599 register struct buf *bp; 600 register struct rd_softc *rs = &rd_softc[unit]; 601 602 bp = rdtab[unit].b_actf; 603 rs->sc_addr = bp->b_un.b_addr; 604 rs->sc_resid = bp->b_bcount; 605 if (hpibreq(&rs->sc_dq)) 606 rdstart(unit); 607 } 608 609 rdstart(unit) 610 register int unit; 611 { 612 register struct rd_softc *rs = &rd_softc[unit]; 613 register struct buf *bp = rdtab[unit].b_actf; 614 register struct hp_device *hp = rs->sc_hd; 615 register int part; 616 617 again: 618 #ifdef DEBUG 619 if (rddebug & RDB_FOLLOW) 620 printf("rdstart(%d): bp %x, %c\n", unit, bp, 621 (bp->b_flags & B_READ) ? 'R' : 'W'); 622 #endif 623 part = rdpart(bp->b_dev); 624 rs->sc_flags |= RDF_SEEK; 625 rs->sc_ioc.c_unit = C_SUNIT(rs->sc_punit); 626 rs->sc_ioc.c_volume = C_SVOL(0); 627 rs->sc_ioc.c_saddr = C_SADDR; 628 rs->sc_ioc.c_hiaddr = 0; 629 rs->sc_ioc.c_addr = RDBTOS(bp->b_blkno + rs->sc_info->nbpc * 630 rs->sc_info->sizes[part].cyloff); 631 rs->sc_ioc.c_nop2 = C_NOP; 632 rs->sc_ioc.c_slen = C_SLEN; 633 rs->sc_ioc.c_len = rs->sc_resid; 634 rs->sc_ioc.c_cmd = bp->b_flags & B_READ ? C_READ : C_WRITE; 635 #ifdef DEBUG 636 if (rddebug & RDB_IO) 637 printf("rdstart: hpibsend(%x, %x, %x, %x, %x)\n", 638 hp->hp_ctlr, hp->hp_slave, C_CMD, 639 &rs->sc_ioc.c_unit, sizeof(rs->sc_ioc)-2); 640 #endif 641 if (hpibsend(hp->hp_ctlr, hp->hp_slave, C_CMD, &rs->sc_ioc.c_unit, 642 sizeof(rs->sc_ioc)-2) == sizeof(rs->sc_ioc)-2) { 643 if (hp->hp_dk >= 0) { 644 dk_busy |= 1 << hp->hp_dk; 645 dk_seek[hp->hp_dk]++; 646 } 647 #ifdef DEBUG 648 if (rddebug & RDB_IO) 649 printf("rdstart: hpibawait(%x)\n", hp->hp_ctlr); 650 #endif 651 hpibawait(hp->hp_ctlr); 652 return; 653 } 654 /* 655 * Experience has shown that the hpibwait in this hpibsend will 656 * occasionally timeout. It appears to occur mostly on old 7914 657 * drives with full maintenance tracks. We should probably 658 * integrate this with the backoff code in rderror. 659 */ 660 #ifdef DEBUG 661 if (rddebug & RDB_ERROR) 662 printf("rd%d: rdstart: cmd %x adr %d blk %d len %d ecnt %d\n", 663 unit, rs->sc_ioc.c_cmd, rs->sc_ioc.c_addr, 664 bp->b_blkno, rs->sc_resid, rdtab[unit].b_errcnt); 665 rdstats[unit].rdretries++; 666 #endif 667 rs->sc_flags &= ~RDF_SEEK; 668 rdreset(rs, hp); 669 if (rdtab[unit].b_errcnt++ < RDRETRY) 670 goto again; 671 printf("rd%d: rdstart err: cmd 0x%x sect %d blk %d len %d\n", 672 unit, rs->sc_ioc.c_cmd, rs->sc_ioc.c_addr, 673 bp->b_blkno, rs->sc_resid); 674 rdtab[unit].b_errcnt = 0; 675 rdtab[unit].b_actf = bp->b_actf; 676 bp->b_flags |= B_ERROR; 677 bp->b_error = EIO; 678 bp->b_resid = 0; 679 biodone(bp); 680 hpibfree(&rs->sc_dq); 681 bp = rdtab[unit].b_actf; 682 if (bp == NULL) { 683 rdtab[unit].b_active = 0; 684 return; 685 } 686 rs->sc_addr = bp->b_un.b_addr; 687 rs->sc_resid = bp->b_bcount; 688 if (hpibreq(&rs->sc_dq)) 689 goto again; 690 } 691 692 rdgo(unit) 693 register int unit; 694 { 695 register struct rd_softc *rs = &rd_softc[unit]; 696 register struct hp_device *hp = rs->sc_hd; 697 struct buf *bp = rdtab[unit].b_actf; 698 699 if (hp->hp_dk >= 0) { 700 dk_busy |= 1 << hp->hp_dk; 701 dk_xfer[hp->hp_dk]++; 702 dk_wds[hp->hp_dk] += rs->sc_resid >> 6; 703 } 704 hpibgo(hp->hp_ctlr, hp->hp_slave, C_EXEC, 705 rs->sc_addr, rs->sc_resid, bp->b_flags & B_READ); 706 } 707 708 rdintr(unit) 709 register int unit; 710 { 711 register struct rd_softc *rs = &rd_softc[unit]; 712 register struct buf *bp = rdtab[unit].b_actf; 713 register struct hp_device *hp = rs->sc_hd; 714 u_char stat = 13; /* in case hpibrecv fails */ 715 int restart; 716 717 #ifdef DEBUG 718 if (rddebug & RDB_FOLLOW) 719 printf("rdintr(%d): bp %x, %c, flags %x\n", unit, bp, 720 (bp->b_flags & B_READ) ? 'R' : 'W', rs->sc_flags); 721 if (bp == NULL) { 722 printf("rd%d: bp == NULL\n", unit); 723 return; 724 } 725 #endif 726 if (hp->hp_dk >= 0) 727 dk_busy &= ~(1 << hp->hp_dk); 728 if (rs->sc_flags & RDF_SEEK) { 729 rs->sc_flags &= ~RDF_SEEK; 730 if (hpibustart(hp->hp_ctlr)) 731 rdgo(unit); 732 return; 733 } 734 if ((rs->sc_flags & RDF_SWAIT) == 0) { 735 #ifdef DEBUG 736 rdstats[unit].rdpolltries++; 737 #endif 738 if (hpibpptest(hp->hp_ctlr, hp->hp_slave) == 0) { 739 #ifdef DEBUG 740 rdstats[unit].rdpollwaits++; 741 #endif 742 if (hp->hp_dk >= 0) 743 dk_busy |= 1 << hp->hp_dk; 744 rs->sc_flags |= RDF_SWAIT; 745 hpibawait(hp->hp_ctlr); 746 return; 747 } 748 } else 749 rs->sc_flags &= ~RDF_SWAIT; 750 if (!hpibrecv(hp->hp_ctlr, hp->hp_slave, C_QSTAT, &stat, 1) || stat) { 751 #ifdef DEBUG 752 if (rddebug & RDB_ERROR) 753 printf("rdintr: recv failed or bad stat %d\n", stat); 754 #endif 755 restart = rderror(unit); 756 #ifdef DEBUG 757 rdstats[unit].rdretries++; 758 #endif 759 if (rdtab[unit].b_errcnt++ < RDRETRY) { 760 if (restart) 761 rdstart(unit); 762 return; 763 } 764 bp->b_flags |= B_ERROR; 765 bp->b_error = EIO; 766 } 767 rdtab[unit].b_errcnt = 0; 768 rdtab[unit].b_actf = bp->b_actf; 769 bp->b_resid = 0; 770 biodone(bp); 771 hpibfree(&rs->sc_dq); 772 if (rdtab[unit].b_actf) 773 rdustart(unit); 774 else 775 rdtab[unit].b_active = 0; 776 } 777 778 rdstatus(rs) 779 register struct rd_softc *rs; 780 { 781 register int c, s; 782 u_char stat; 783 int rv; 784 785 c = rs->sc_hd->hp_ctlr; 786 s = rs->sc_hd->hp_slave; 787 rs->sc_rsc.c_unit = C_SUNIT(rs->sc_punit); 788 rs->sc_rsc.c_sram = C_SRAM; 789 rs->sc_rsc.c_ram = C_RAM; 790 rs->sc_rsc.c_cmd = C_STATUS; 791 bzero((caddr_t)&rs->sc_stat, sizeof(rs->sc_stat)); 792 rv = hpibsend(c, s, C_CMD, &rs->sc_rsc, sizeof(rs->sc_rsc)); 793 if (rv != sizeof(rs->sc_rsc)) { 794 #ifdef DEBUG 795 if (rddebug & RDB_STATUS) 796 printf("rdstatus: send C_CMD failed %d != %d\n", 797 rv, sizeof(rs->sc_rsc)); 798 #endif 799 return(1); 800 } 801 rv = hpibrecv(c, s, C_EXEC, &rs->sc_stat, sizeof(rs->sc_stat)); 802 if (rv != sizeof(rs->sc_stat)) { 803 #ifdef DEBUG 804 if (rddebug & RDB_STATUS) 805 printf("rdstatus: send C_EXEC failed %d != %d\n", 806 rv, sizeof(rs->sc_stat)); 807 #endif 808 return(1); 809 } 810 rv = hpibrecv(c, s, C_QSTAT, &stat, 1); 811 if (rv != 1 || stat) { 812 #ifdef DEBUG 813 if (rddebug & RDB_STATUS) 814 printf("rdstatus: recv failed %d or bad stat %d\n", 815 rv, stat); 816 #endif 817 return(1); 818 } 819 return(0); 820 } 821 822 /* 823 * Deal with errors. 824 * Returns 1 if request should be restarted, 825 * 0 if we should just quietly give up. 826 */ 827 rderror(unit) 828 int unit; 829 { 830 struct rd_softc *rs = &rd_softc[unit]; 831 register struct rd_stat *sp; 832 struct buf *bp; 833 daddr_t bn, pbn; 834 835 if (rdstatus(rs)) { 836 #ifdef DEBUG 837 printf("rd%d: couldn't get status\n", unit); 838 #endif 839 rdreset(rs, rs->sc_hd); 840 return(1); 841 } 842 sp = &rs->sc_stat; 843 if (sp->c_fef & FEF_REXMT) 844 return(1); 845 if (sp->c_fef & FEF_PF) { 846 rdreset(rs, rs->sc_hd); 847 return(1); 848 } 849 /* 850 * Unit requests release for internal maintenance. 851 * We just delay awhile and try again later. Use expontially 852 * increasing backoff ala ethernet drivers since we don't really 853 * know how long the maintenance will take. With RDWAITC and 854 * RDRETRY as defined, the range is 1 to 32 seconds. 855 */ 856 if (sp->c_fef & FEF_IMR) { 857 extern int hz; 858 int rdtimo = RDWAITC << rdtab[unit].b_errcnt; 859 #ifdef DEBUG 860 printf("rd%d: internal maintenance, %d second timeout\n", 861 unit, rdtimo); 862 rdstats[unit].rdtimeouts++; 863 #endif 864 hpibfree(&rs->sc_dq); 865 timeout(rdrestart, unit, rdtimo*hz); 866 return(0); 867 } 868 bp = rdtab[unit].b_actf; 869 /* 870 * First conjure up the block number at which the error occured. 871 * Note that not all errors report a block number, in that case 872 * we just use b_blkno. 873 */ 874 pbn = RDSTOB(rs->sc_info->nbpc * 875 rs->sc_info->sizes[rdpart(bp->b_dev)].cyloff); 876 if ((sp->c_fef & FEF_CU) || (sp->c_fef & FEF_DR) || 877 (sp->c_ief & IEF_RRMASK)) { 878 bn = pbn + bp->b_blkno; 879 pbn = bp->b_blkno; 880 } else { 881 bn = RDSTOB(sp->c_blk); 882 pbn = bn - pbn; 883 } 884 /* 885 * Now output a generic message suitable for badsect. 886 * Note that we don't use harderr cuz it just prints 887 * out b_blkno which is just the beginning block number 888 * of the transfer, not necessary where the error occured. 889 */ 890 printf("rd%d%c: hard error sn%d\n", 891 rdunit(bp->b_dev), 'a'+rdpart(bp->b_dev), pbn); 892 /* 893 * Now report the status as returned by the hardware with 894 * attempt at interpretation (unless debugging). 895 */ 896 printf("rd%d %s error:", 897 unit, (bp->b_flags & B_READ) ? "read" : "write"); 898 #ifdef DEBUG 899 if (rddebug & RDB_ERROR) { 900 /* status info */ 901 printf("\n volume: %d, unit: %d\n", 902 (sp->c_vu>>4)&0xF, sp->c_vu&0xF); 903 rdprinterr("reject", sp->c_ref, err_reject); 904 rdprinterr("fault", sp->c_fef, err_fault); 905 rdprinterr("access", sp->c_aef, err_access); 906 rdprinterr("info", sp->c_ief, err_info); 907 printf(" block: %d, P1-P10: ", bn); 908 printf("%s", hexstr(*(u_int *)&sp->c_raw[0], 8)); 909 printf("%s", hexstr(*(u_int *)&sp->c_raw[4], 8)); 910 printf("%s\n", hexstr(*(u_short *)&sp->c_raw[8], 4)); 911 /* command */ 912 printf(" ioc: "); 913 printf("%s", hexstr(*(u_int *)&rs->sc_ioc.c_pad, 8)); 914 printf("%s", hexstr(*(u_short *)&rs->sc_ioc.c_hiaddr, 4)); 915 printf("%s", hexstr(*(u_int *)&rs->sc_ioc.c_addr, 8)); 916 printf("%s", hexstr(*(u_short *)&rs->sc_ioc.c_nop2, 4)); 917 printf("%s", hexstr(*(u_int *)&rs->sc_ioc.c_len, 8)); 918 printf("%s\n", hexstr(*(u_short *)&rs->sc_ioc.c_cmd, 4)); 919 return(1); 920 } 921 #endif 922 printf(" v%d u%d, R0x%x F0x%x A0x%x I0x%x\n", 923 (sp->c_vu>>4)&0xF, sp->c_vu&0xF, 924 sp->c_ref, sp->c_fef, sp->c_aef, sp->c_ief); 925 printf("P1-P10: "); 926 printf("%s", hexstr(*(u_int *)&sp->c_raw[0], 8)); 927 printf("%s", hexstr(*(u_int *)&sp->c_raw[4], 8)); 928 printf("%s\n", hexstr(*(u_short *)&sp->c_raw[8], 4)); 929 return(1); 930 } 931 932 rdread(dev, uio) 933 dev_t dev; 934 struct uio *uio; 935 { 936 register int unit = rdunit(dev); 937 938 return(physio(rdstrategy, &rdbuf[unit], dev, B_READ, minphys, uio)); 939 } 940 941 rdwrite(dev, uio) 942 dev_t dev; 943 struct uio *uio; 944 { 945 register int unit = rdunit(dev); 946 947 return(physio(rdstrategy, &rdbuf[unit], dev, B_WRITE, minphys, uio)); 948 } 949 950 /*ARGSUSED*/ 951 rdioctl(dev, cmd, data, flag) 952 dev_t dev; 953 int cmd; 954 caddr_t data; 955 int flag; 956 { 957 return(EINVAL); 958 } 959 960 rdsize(dev) 961 dev_t dev; 962 { 963 register int unit = rdunit(dev); 964 register struct rd_softc *rs = &rd_softc[unit]; 965 966 if (unit >= NRD || (rs->sc_flags & RDF_ALIVE) == 0) 967 return(-1); 968 return(rs->sc_info->sizes[rdpart(dev)].nblocks); 969 } 970 971 #ifdef DEBUG 972 rdprinterr(str, err, tab) 973 char *str; 974 short err; 975 char *tab[]; 976 { 977 register int i; 978 int printed; 979 980 if (err == 0) 981 return; 982 printf(" %s error field:", str, err); 983 printed = 0; 984 for (i = 0; i < 16; i++) 985 if (err & (0x8000 >> i)) 986 printf("%s%s", printed++ ? " + " : " ", tab[i]); 987 printf("\n"); 988 } 989 #endif 990 991 #include "machine/pte.h" 992 #include "machine/vmparam.h" 993 #include "../h/vmmac.h" 994 995 /* 996 * Non-interrupt driven, non-dma dump routine. 997 */ 998 rddump(dev) 999 dev_t dev; 1000 { 1001 int part = rdpart(dev); 1002 int unit = rdunit(dev); 1003 register struct rd_softc *rs = &rd_softc[unit]; 1004 register struct hp_device *hp = rs->sc_hd; 1005 register daddr_t baddr; 1006 register int maddr; 1007 register int pages, i; 1008 char stat; 1009 extern int lowram, dumpsize; 1010 1011 pages = dumpsize; 1012 #ifdef DEBUG 1013 if (rddebug & RDB_DUMP) 1014 printf("rddump(%x): u %d p %d dumplo %d ram %x pmem %d\n", 1015 dev, unit, part, dumplo, lowram, ctod(pages)); 1016 #endif 1017 /* is drive ok? */ 1018 if (unit >= NRD || (rs->sc_flags & RDF_ALIVE) == 0) 1019 return (ENXIO); 1020 /* HPIB idle? */ 1021 if (!hpibreq(&rs->sc_dq)) { 1022 #ifdef DEBUG 1023 /* is this a safe thing to do?? */ 1024 hpibreset(hp->hp_ctlr); 1025 rdreset(rs, rs->sc_hd); 1026 printf("[ drive %d reset ] ", unit); 1027 #else 1028 return (EFAULT); 1029 #endif 1030 } 1031 /* dump parameters in range? */ 1032 if (dumplo < 0 || dumplo >= rs->sc_info->sizes[part].nblocks) 1033 return (EINVAL); 1034 if (dumplo + ctod(pages) > rs->sc_info->sizes[part].nblocks) 1035 pages = dtoc(rs->sc_info->sizes[part].nblocks - dumplo); 1036 maddr = lowram; 1037 baddr = dumplo + rs->sc_info->nbpc * rs->sc_info->sizes[part].cyloff; 1038 #ifdef DEBUG 1039 if (rddebug & RDB_DUMP) 1040 printf("rddump: dumping %d pages from %x to disk block %d\n", 1041 pages, maddr, baddr); 1042 #endif 1043 for (i = 0; i < pages; i++) { 1044 #ifdef DEBUG 1045 #define NPGMB (1024*1024/NBPG) 1046 /* print out how many Mbs we have dumped */ 1047 if (i && (i % NPGMB) == 0) 1048 printf("%d ", i / NPGMB); 1049 #undef NPBMG 1050 #endif 1051 rs->sc_ioc.c_unit = C_SUNIT(rs->sc_punit); 1052 rs->sc_ioc.c_volume = C_SVOL(0); 1053 rs->sc_ioc.c_saddr = C_SADDR; 1054 rs->sc_ioc.c_hiaddr = 0; 1055 rs->sc_ioc.c_addr = RDBTOS(baddr); 1056 rs->sc_ioc.c_nop2 = C_NOP; 1057 rs->sc_ioc.c_slen = C_SLEN; 1058 rs->sc_ioc.c_len = NBPG; 1059 rs->sc_ioc.c_cmd = C_WRITE; 1060 hpibsend(hp->hp_ctlr, hp->hp_slave, C_CMD, 1061 &rs->sc_ioc.c_unit, sizeof(rs->sc_ioc)-2); 1062 if (hpibswait(hp->hp_ctlr, hp->hp_slave)) { 1063 #ifdef DEBUG 1064 if (rddebug & RDB_DUMP) 1065 printf("rddump: IOC wait timeout\n"); 1066 #endif 1067 return (EIO); 1068 } 1069 mapin(mmap, (u_int)vmmap, btop(maddr), PG_URKR|PG_CI|PG_V); 1070 hpibsend(hp->hp_ctlr, hp->hp_slave, C_EXEC, vmmap, NBPG); 1071 if (hpibswait(hp->hp_ctlr, hp->hp_slave)) { 1072 #ifdef DEBUG 1073 if (rddebug & RDB_DUMP) 1074 printf("rddump: write wait timeout\n"); 1075 #endif 1076 } 1077 hpibrecv(hp->hp_ctlr, hp->hp_slave, C_QSTAT, &stat, 1); 1078 if (stat) { 1079 #ifdef DEBUG 1080 if (rddebug & RDB_DUMP) 1081 printf("rddump: write failed, status %x\n", 1082 stat); 1083 #endif 1084 return (EIO); 1085 } 1086 maddr += NBPG; 1087 baddr += ctod(1); 1088 } 1089 return (0); 1090 } 1091 #endif 1092